Charles henry cool



Patented Apr. 25, I899.

C. H. CUUL. WRENCH. (Application filed. ieb. 4, 1899.)

(No Model.)

CHARLES HENRY COOL, OF RIDGEVILLE, INDIANA, ASSIGNOR TO SAMUEL STICK, JR., OF SAME PLACE.

WRENCH.

SPECIFICATION forming part of Letters Patent No. 623,947, dated April 25, 1899.

Application filed February 4,1899. $erial No. 704,511. (No model.)

T at whom, it may concern:

Be it known that I, CHARLES HENRY COOL, a citizen of the United States, residing at Ridgeville, in the county of Randolph and State of Indiana, have invented a new and useful Wrench, of which the following is a specification.

The invention relates to improvements in wrenches.

IO The object of the present invention is to improve the construction of wrenches and to provide a simple and comparatively inexpensive one which will possess great strength and durability and which will be capable of being is quickly adjusted to a nut or other article and of securely holding the movable jaw at the desired adjustment.

The invention consists in the construction and novel combination and arrangement of parts, as hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claims hereto appended.

In the drawings, Figure 1 is a perspective view of a wrench constructed in accordance z 5 with this invention. Fig. 2 is a longitudinal sectional view. Fig. 3 is a detail perspective View of the wedge.

Like numerals of reference designate corresponding parts in all the figures of the draw- 0 ings.

1 designates a stationary jaw arranged at one end of the shank 2 and cooperating with a movable jaw slidingly mounted on the shank 2, and this movable jaw 3 is provided with an extension 4., having forwardly-projecting ears 5, between which an operating-lever 6 is fulcrumed. The operating-lever, which is fulcrumed on a screw 7 or other suitable fastening device, is connected between the same with a wedge S, interposed between it and the shank 2 and adapted to be introduced between the said shank and a transverse pin 9, whereby the sliding jaw is locked at any desired adjustment on the shank. The for- 5 wardly or outwardly projecting ears have the screw 7 located near their outer ends, and the transverse pin, which is engaged by the wedge, is arranged adjacent to the shank, the intervening space being only sufficient to receive a comparatively small portion of the wedge.

The wedge S, which is tapering, as shown, is provided with curved longitudinal faces, the convex longitudinal face 10 being presented to the shank and the concave face be- 5 5 ing disposed toward the pin, and when the locking-lever is moved toward the shank the curved point of the wedge hooks under the transverse pin and securely engages the shank with sufficient force to retain the sliding-jaw at any desired adjustment. The engaging portion of the wedge fits between the perforated ears, and the outer portion of the wedge is provided with a pair of offset ears or flanges 11, forming a slot or bifurcation to receive the locking-lever 6 and connected with the same at a point beyond the perforated ears 5 by a transverse pivot passing through registering perforations of the ears or flanges 11 and the lever 6 and consisting of a pin 12 or other suitable fastening device. The wedge is carried into and out of engagement with the shank and the transverse pin by swinging the lever inward and outward, and the sliding jaw may be instantly released, adjusted, and secured.

The invention has the following advantages: The wrench, which is simple and inexpensive in construction, possesses great strength and durability, and it is capable of being readily adjusted to a nut or other object. The locking-lever and the wedge may be instantly operated to lock and release the sliding jaw, and the wedge when in engagement with the pin and the shank securely holds the sliding jaw against backward movement on the shank.

. Changes in the form, proportion, and minor details of construction may be resorted to without departing from the spirit or sacrifico ing any of the advantages of this invention.

What is claimed is 1. A wrench comprising a shank, a stationary jaw, a sliding jaw mounted on the shank and provided with projecting ears, a lever fulcrumed between the ears, a pin connecting the ears and arranged at a point between the lever and the shank, and a movable wedge pivoted to the lever at a point beyond the ears, interposed between the said lever and the shank and arranged to be'inserted between the latter and the pin, whereby the sliding jaw is looked to the shank, substantially as described.

2. In a wrench, the combination with a shank, of a sliding jaw provided with projeeting ears, a lever pivoted between the ears, a pin connecting the ears at a point between the lever and the shank, and a curved wedge arranged between the ears and adapted to be introduced between the pin and the shank,

:0 said wedge being provided with laterally-off- 

